PLEASE ITS URGENT, PLEASE ITS URGENT

When is the yield curve downward sloping?

a. Liquidity premiums are bigger, the bigger the maturity

b. Supply of short-maturity securities falls short of the supply of long-maturity securities (assuming the same demand curve for both)

c. Economy is expected to grow fast

d. Supply of short-maturity securities exceeds the supply of long-maturity securities (assuming the same demand curve for both)

e. Demand of short-maturity securities exceeds the demand of long-maturity securities (assuming the same supply for both)